B01J 31/28
Of the platinum group metals, iron group metals or copper
Official title: of the platinum group metals, iron group metals or copper
B01J31/28 (Of the platinum group metals, iron group metals or copper) appears on 506 US grants and 379 published applications in this corpus.
Search patents in B01J- Granted patents
- 506
- Published applications
- 379
- Assignees
- 367
- Inventors
- 1,484
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 17 | 0 |
| 1985 | 14 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 9 |
| 2002 | 11 | 10 |
| 2003 | 13 | 25 |
| 2004 | 16 | 23 |
| 2005 | 15 | 22 |
| 2006 | 17 | 10 |
| 2007 | 14 | 6 |
| 2008 | 3 | 5 |
| 2009 | 6 | 7 |
| 2010 | 10 | 9 |
| 2011 | 3 | 7 |
| 2012 | 4 | 9 |
| 2013 | 8 | 11 |
| 2014 | 7 | 10 |
| 2015 | 10 | 23 |
| 2016 | 12 | 24 |
| 2017 | 13 | 16 |
| 2018 | 10 | 19 |
| 2019 | 34 | 23 |
| 2020 | 16 | 24 |
| 2021 | 17 | 21 |
| 2022 | 14 | 10 |
| 2023 | 13 | 21 |
| 2024 | 8 | 12 |
| 2025 | 6 | 13 |
| 2026 | 2 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Palladium catalysts for forming vinyl addition polymers having improved film forming properties1 Sep 2026US 12,723,111 B2Promerus, LLC
- Method for manufacturing alkenyl phosphorus compound7 Apr 2026US 12,595,274 B2Maruzen Petrochemical Co., Ltd.
- Thienopyrimidine derivative and preparation method therefor18 Nov 2025US 12,473,300 B2Guangzhou Maxinovel Pharmaceuticals Co., Ltd.
- Preparation method of Co@CM multi-channel ceramic catalytic membrane for hydrogenation of p-nitrophenol21 Oct 2025US 12,447,466 B2Nanjing Tech University
- Metal-supporting nonwoven fabric and production method thereof, catalyst, unsaturated compound hydrogenation method, and carbon-carbon bond forming method15 Jul 2025US 12,357,972 B2Ebara Corporation
- Substituted 2,3-dihydrobenzo[d][1,3]oxaphosphole ligand, preparation method and use thereof10 Sep 2026US 2026/0265282 A1Shenzhen Catalys Technology Co., Ltd
- Catalyst for ammonia synthesis obtained by combining hydrogen-containing aluminum and iron3 Sep 2026US 2026/0257929 A1Institute of Science Tokyo
- Manufacturing 2,3,5-trimethylhydroquinone from a mixture of mesitol and 2,3,6-trimethylphenol20 Aug 2026US 2026/0242317 A1Dsm IP Assets B.V.
- Antifouling materials based on glasses with catalytic surface layers13 Aug 2026US 2026/0233202 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Process and catalyst composition for preparing organosilicon compounds via isomerization of internal olefins and hydrosilylation6 Aug 2026US 2026/0226081 A1Dow Silicones Corporation
Most cited
By later US patents
- Organometal catalyst compositions285US 6,548,441 B1Phillips Petroleum Company · 2003
- Colloidal size hydrophobic polymers particulate having discrete particles of an inorganic material dispersed therein112US 4,421,660 AThe Dow Chemical Company · 1983
- Polymerization of carbon monoxide/olefin with P ligand having polar aryl group101US 4,843,144 AShell Oil Company · 1989
- Hydroconversion process82US 4,067,799 AExxon Research & Engineering Co. · 1978
- Recyclable metathesis catalysts82US 6,921,735 B2The Trustees of Boston College · 2005